Open a new Microsoft Excel 2010 spreadsheet. Click on cell "A1," and enter the first number in the data set you want to get the trimmed mean for.

It is difficult to calculate these values manually and while calculators make it easier, Excel is the preferred tool for finding these values over a range of cells.

Adding a running total to a simple Microsoft Excel revenue sheet isn't difficult, but adding a conditional running total will require a bit more effort. Solutions are simpler than you might think.

How to Calculate an Interquartile Mean in Excel. The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile ...